@article{10_4153_CJM_1969_093_3,
     author = {Dyer, Micheal},
     title = {Federer-\v{C}ech {Couples}},
     journal = {Canadian journal of mathematics},
     pages = {842--864},
     year = {1969},
     volume = {21},
     number = {1},
     doi = {10.4153/CJM-1969-093-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-093-3/}
}